Hose clamp



Oct. 29, 1935. J. WINTER 2,018,906v

HOSE CLAMP Filed March 4, 1935 Patented Oct. 29, 1935 UNITED STATES PATENT OFFIE HOSE CLAMP tion of Indiana Application March 4, 1935, Serial No. 9,324

4 Claims.

My invention relates to a hose clamp of the type having a flexible metal band and a tightening device between the ends of the band, said tightening device consisting of a link adapted to be attached to one end of the band in any of diiferent adjusted positions, and to the other end of which band a lever is journaled, by the turning of which lever toward the band the ends of the band will be moved towards one another and thus the band tightened around a hose to fasten it tightly to a nozzle or the like. It is the especial object of my invention to provide certain improvements in the construction of such a hose clamp whereby to reduce the cost of production as compared with a hose clamp of the type shown in Patent 1,564,837, granted December 8, 1925, Edeborg, which patent is now owned by the Winter Stamping Company. I attain the objects of my invention by the means illustrated in the accompanying drawing, in which- Figure 1 is a front plan of my invention applied to a hose;

Fig. 2 is a side elevation of same, the hose being shown in section;

Fig. 3 is a similar View of the reverse side of the clamp;

Fig. l is a side elevation of the hose clamp removed from the hose and with its members in unclamped position;

Fig. 5 is a detail perspective view of clamp member [1;

Fig. 6 is a detail perspective view of improved link member H and Fig. 7 is a detail perspective view of band 4 and locking knob I.

Like numerals designate like parts in each of the several views.

Referring to the accompanying drawing, there is illustrated a portion of a hose l, a threaded nozzle 2, a shank 3 of said nozzle, which is engaged by the end of a hose l. I provide the usual band 4 having outturned ends 5 and 6. Mounted on band 4 for pivotal movement is a locking knob 1 having its shaft 9 afiixed to a Washer or plate 8 on the inner wall of the band 4, as shown in Fig. 4. Link H, as shown in Fig. 6, has downturned sides Ii! which terminate in end portions I3 in which are the elongated slots I4 shown in Figs. 3, 4, and 6. A clamp lever I! is pivoted by means of pivot pin 2! in the slots l4, the pin 2| being mounted in the upturned sides l5, which sides also function as a guard for the knob 'l to prevent accidental operation of same. Lever I 1 has an outturned end 18 to be grasped by the finger in operating the lever. It also has a longitudinal slot it, said slot having a slightly enlarged portion 20, as shown in Fig. 5. As shown in Fig. 5, the pin 2| passes through the apertures IS in the sides 15 to pivotally attach the lever I! to the link ll. 5

The device is engaged around a hose in the manner shown in Figs. 1, 2, and 3. The unclamped position of the device is shown in Fig. 4, with lever I! raised, and with the outturned end 6 of band 4 engaging the inner end of the lever. i0 As the lever is pressed down to the position shown in Fig. 3 the band is tightened around the hose. The outturned end 5 of the band may be engaged in any of the slots l2 in the link ll, thereby permitting of a considerable range of 16 adjustment in the diameter of the device. As the link I I is formed of one single piece of metal which may be stamped out, the expense of production is much reduced as compared with the prior art where a number of separate parts are 20 required to be manufactured and put together to produce the link.

It may be noted that the friction Washer or plate 8 is rigidly attached to the lower end of the shaft 9 of the locking knob 1, this plate making 25 contact with the inside surface of the band. When the clamp is installed upon hose and the knob turned to locking position, the friction of the washer or plate 8 against the surface of the hose prevents the knob from turning and un- 30 looking the clamp. This locking knob is further prevented from turning from outside contact with some foreign body by the upturned sides l5 of the lever which are so formed as to partially enclose the upper portion of the knob 1. 35

What I claim is:

1. In a hose clamp, the combination of a flexible metal bandhaving outturned ends, a link having a series of spaced slots any of which is engageable by an outturnedend of said band, 40 a clamp lever pivotally mounted on the other end of said link and having an end portion thereof engageable by the other outturned end of the flexible band for tightening the band about a hose, said clamp lever having a longi- 45 tudinal slot therein, a locking knob, a washer disposed on the inner wall of the flexible metal band and to which the locking knob is rigidly affixed, said washer frictionally engaging the surface of the hose to retain the locking knob 50 in adjusted locking position on the clamp lever.

2. In a hose clamp, the combination of a flexible metal band, a link T-shaped in cross section and having a series of parallel slots to any of which one end of the said band is detachably 55 and adjustably engageable, a clamp lever pivotally attached to said link and having one of its ends engaging the other end of the flexible metal band, said clamp lever having upturned sides, and a locking knob carried by the metal band and engageable with the clamp lever and disposed between the upturned sides of the clamp lever when in looking position.

3. In a hose clamp, the combination of a flexible metal'band having outturned ends, a link T-shaped in cross section and having a plurality of spaced slots in any one of which an outturned end of said band is adjustably engageable, said link having extended sides, a clamp lever having upturned sides, a pivot pin engaging the extended sides of the link and the upturned sides of the clamp lever for pivotally mounting the clamp lever on the link, said clamp lever engaging the other outturned end of the metal band, and locking means releasably engaging the clamp lever and for which the upturned sides of the clamp lever function as guard members.

4. In a hose clamp, the combination of a flexible metal band having outturned ends, a. link having a series of spaced parallel slots stamped therein and having downturned sides extended beyond the body of the link, said sides having slots, a clamp lever pivotally mounted in the slotted sides of said link and having one end engaging 'the outturned end of the metal band. means for locking the clamp lever in locked position against the metal band to tighten same around a hose, said locking means including a washer on the inner' side of the metal band trictionally engaging the hose to hold the locking means in any adjusted looking position, substantially as described.

JOHN WINTER. 

